EP2116801B1 - Kühleinheit und entsprechende Steuerungs- und Verwaltungsanordnung - Google Patents

Kühleinheit und entsprechende Steuerungs- und Verwaltungsanordnung Download PDF

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Publication number
EP2116801B1
EP2116801B1 EP08425310.3A EP08425310A EP2116801B1 EP 2116801 B1 EP2116801 B1 EP 2116801B1 EP 08425310 A EP08425310 A EP 08425310A EP 2116801 B1 EP2116801 B1 EP 2116801B1
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EP
European Patent Office
Prior art keywords
refrigeration unit
refrigeration
power supply
compressor
control switch
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Application number
EP08425310.3A
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English (en)
French (fr)
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EP2116801A1 (de
Inventor
Luca Bora
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Indel B SpA
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Indel B SpA
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Priority to EP08425310.3A priority Critical patent/EP2116801B1/de
Priority to US12/453,224 priority patent/US8297066B2/en
Priority to CN200910149781XA priority patent/CN101598481B/zh
Publication of EP2116801A1 publication Critical patent/EP2116801A1/de
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Publication of EP2116801B1 publication Critical patent/EP2116801B1/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/12—Sound
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/04—Sensors detecting the presence of a person

Definitions

  • the present invention relates to a refrigeration unit and to the respective control and management assembly.
  • minibars small refrigerators, generally known as minibars, in which beverages and/or liqueurs, and optionally foodstuffs such as confectionery or the like, are stored and are thus made available to the occupants of the room.
  • the desired temperature of the compartment inside the minibar in which the beverages and foodstuffs are to be accommodated is achieved by using a compressor; this compressor is activated for example by a thermostat when a given temperature limit is exceeded and is deactivated when the desired temperature is restored.
  • noise is associated with the operation of the compressor and is generated by the compressor itself and can annoy the people who are present in the room, particularly during night hours, if the thermostat detects an increase in the internal temperature of the compartment, with consequent activation of the compressor.
  • EP-A-0 881 443 discloses a refrigeration unit according to the preamble of claims 1, 6 and 11 respectively, the application discloses a mains operated refrigeration apparatus connected to an engery saving control unit comprising a proximity/movement sensor detecting if users are in the vicinity of the refrigerator to initiate a starting mode or enhanced cooling.
  • WO 2007/032608 A discloses a refrigerator controlled by an illumination intensity sensor unit that allows to block power supply to the refrigerator for a predetermined time when e.g. the user has turned off the lights.
  • the aim of the present invention is to solve the drawbacks described above by providing a refrigeration unit and respective control and management assembly in which the noise associated with operation does not annoy the people who are present in the immediate vicinity.
  • an object of the invention is to provide a refrigeration unit, such as minibars for hotels and the like, which can ensure the preservation at a predefined temperature of foodstuffs and beverages in a room without annoying the occupants of the room.
  • Another object of the invention is to provide a refrigeration unit which ensures high reliability in operation.
  • Another object of the invention is to provide a refrigeration unit which can be obtained easily starting from commonly commercially available elements and materials.
  • Another object of the invention is to provide a refrigeration unit which has low costs and is safe in application.
  • a refrigeration unit generally designated by the reference numeral 1, comprises a refrigeration assembly 2 which is electrically connected to a mains 3 for its electrical power supply by means of a power input 4.
  • the refrigeration unit 1 is preferably of the type of minibars 5, typically placed in hotel rooms to offer small meals or fresh beverages, kept at the desired predefined temperature, to the occupants of said rooms.
  • the refrigeration assembly 2 comprises a compressor which, in the presence of an electrical power supply, can be activated to remove heat inside a compartment 6, which is formed inside the unit 1 (which, as mentioned, might be the minibar 5) and is adapted to accommodate products 7 to be kept at a predefined temperature.
  • the protective scope that it defines also includes refrigeration units 1 which are designed for different uses and/or for different types of room, as well as units 1 which have the refrigeration assemblies 2 in which heat removal is performed by way of different means.
  • the refrigeration assembly 2 might have one or more thermoelectric modules, the thermoelectric pairs of which allow, when electric current is applied thereto, to obtain the desired removal of heat.
  • the refrigeration unit 1 comprises at least one signal input 8 and at least one control switch 9, which is arranged along a power line 10, which in turn corresponds to the power input 4.
  • the data that arrive from the signal input 8 are adapted to drive the control switch 9, which controls the power line 10 in order to determine the presence or absence of electrical power supply for the refrigeration assembly 2 and for the compressor, which are arranged downstream of the control switch 9 and of the power line 10.
  • the data provided at the signal input 8 originate directly from a sensor for detecting the presence of at least one person in the immediate vicinity of the unit 1.
  • the data provided at the signal input 8 originate from a mains switch 11, which is arranged substantially downward of the electrical power supply mains 3: it is therefore the closure of the mains switch 11 that sends a driving signal adapted to open the control switch 9; vice versa, the opening of the mains switch 11 sends a driving signal adapted to close the control switch 9.
  • the constructive solution described above is of particular interest if, for example, it is necessary to install the minibar 5 in a hotel room in which, proximate to the access door, there is one mains switch 11 which can be operated by the occupant of the room when he enters.
  • the mains switches 11 are widespread for adjusting and limiting the electrical power supply of electrical loads 12 for which operation is not required when there are no people in the room (consider for example the television set or the various lamps used to light the room).
  • the other electrical devices such as for example the conditioning or heating system, can instead continue to operate because they are powered directly by the mains 3.
  • the data provided at the signal input 8 are determined by a mains switch 11, which is driven by the detection sensor (therefore, the direct intervention of the person is not required): the driving signal (in a manner similar to the previous described solution) is constituted by the presence or absence of voltage across a signal line 13 which corresponds to the signal input 8.
  • the constructive solution described allows, for example, the application of the minibar 5, and more generally of a unit 1 according to the invention, in all rooms, such as hotel rooms, in which there is a sensor such as an electronic reader, arranged inside such hotel room and meant to receive and accommodate the electronic key which is now widely used to allow access.
  • sensors in turn are capable of driving a mains switch 11 for the purposes described above without requiring direct intervention of the person when he enters the room or when he exits from it.
  • the refrigeration unit 1 comprises a safety device 14, which is capable of causing the forced restoration of the electrical power supply of the refrigeration assembly 2.
  • the device 14 produces restoration if the value of the temperature inside the compartment 6 reaches a value which is higher than the predefined temperature by at least one preset increment.
  • the safety device 14 comprises a thermostat, which is functionally associated with the control switch 9 in order to force its closure automatically, with consequent supply of electric power to the compressor, when the temperature inside the compartment 6 reaches, as mentioned above, a value higher than the predefined temperature by at least the preset increment.
  • the refrigeration unit 1 comprises a heat accumulator, which can be arranged inside the compartment 6 and contains a substance with a high heat accumulation power, in order to transfer heat during the operation of the compressor and vice versa absorb it when the compressor is switched off.
  • the operation of the refrigeration unit according to the invention is as follows.
  • control switch 9 is in fact closed and the compressor can thus work to cool the compartment 6, for example according to preset timing cycles or operated by the above cited thermostat.
  • the detection sensor itself is adapted to send a command signal to open the control switch 9.
  • Restoring the electrical power supply of the compressor is allowed by the opening of the mains switch 11, which occurs when the person leaves the room, as detected by the sensor or as a consequence of the action of such person on the mains switch 11.
  • the presence of the safety device 14 offers protection against the damage that prolonged lack of electrical power supply might cause.
  • the safety device 14 produces the forced restoration of the forced power supply, thus allowing reactivation of the compressor.
  • the presence of the heat accumulator allows to delay the moment of the (forced or not forced) activation of the compressor; such accumulator is in fact capable of releasing heat during the operation of the compressor itself, to remove in turn heat from the products 7 introduced in the compartment 6 once the refrigeration assembly 2 has been deactivated.
  • thermoelectric modules the entry of a person in the room might cause for example, in manners which are similar to the ones described above, the interruption of the electrical power supply of the fan of the condenser, thus eliminating the noise generated thereby.
  • the refrigeration unit according to the invention fully achieves the intended aim, since the presence of the control switch allows to determine the presence or absence of electrical power supply for the refrigeration assembly, upon data sent by means of a signal input, to thus allow to disconnect electrically the refrigeration assembly and avoid generating noise and thus causing discomfort to the people who are present nearby.
  • the materials used, as well as the dimensions, may be any according to requirements and to the state of the art.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Claims (15)

  1. Eine Kühleinheit (1) und eine entsprechende Steuerungs- und Verwaltungsanordnung, die einen Kühlaufbau (2) und mindestens einen Stromeingang (4) für ihre elektrische Stromversorgung umfasst, wobei die Kühleinheit mindestens einen Signaleingang (8) und mindestens einen Steuerschalter (9) umfasst, angeordnet entlang einer Netzzuleitung (10), die dem Stromeingang (4) entspricht und ihn steuert, wobei die Daten, die von dem entsprechenden Signaleingang (8) kommen, geeignet sind, den Steuerschalter (9) zu steuern, um anschließend die Anwesenheit/Abwesenheit der elektrischen Stromversorgung für den Kühlaufbau (2) zu bestimmen, wobei die Daten, die dem Signaleingang (8) geliefert werden, von einem Sensor zur Erfassung der Anwesenheit mindestens einer Person in der Nähe der Kühleinheit (1) stammen, dadurch gekennzeichnet, dass das Erfassen der Anwesenheit der mindestens einen Person das Senden eines Steuersignals verursacht, das geeignet ist, den Steuerschalter (9) zu öffnen, um einen Ausfall der elektrischen Stromversorgung des Kühlaufbaus (2) zu verursachen, wobei das Erfassen der Abwesenheit der mindestens einen Person das Senden eines Steuersignals verursacht, das geeignet ist, den Steuerschalter (9) zu schließen, um den Kühlaufbau (2) mit elektrischem Strom zu versorgen.
  2. Die Kühleinheit gemäß Anspruch 1, dadurch gekennzeichnet, dass der Kühlaufbau (2) mindestens einen Kompressor umfasst, der stromabwärts von der Netzzuleitung (10) und dem Steuerschalter (9) angeordnet ist, wobei die Anwesenheit der elektrischen Stromversorgung die Aktivierung des Kompressors ermöglicht, um Wärme aus einem Innenraum (6) zu entfernen, der innerhalb der Kühleinheit (1) gebildet und ausgebildet ist, um Produkte (7) aufzunehmen, die bei einer vordefinierten Temperatur gelagert werden sollen.
  3. Die Kühleinheit (1) gemäß Anspruch 2, dadurch gekennzeichnet, dass sie eine Sicherheitsvorrichtung (14) zur erzwungenen Wiederherstellung der elektrischen Stromversorgung des Kühlaufbaus (2), wenn die in dem Innenraum (6) erreichte Temperatur um mindestens eine voreingestellte Stufe höher ist als die vordefinierte Temperatur, umfasst.
  4. Die Kühleinheit gemäß Anspruch 3, dadurch gekennzeichnet, dass die Sicherheitsvorrichtung (14) einen Thermostaten umfasst, der funktional mit dem Steuerschalter (9) verbunden ist, zum Zwecke seines automatischen Schließens, mit daraus folgender Zufuhr von elektrischem Strom an den mindestens einen Kompressor, wenn die in dem Innenraum (6) erreichte Temperatur um eine voreingestellte Stufe höher ist als die vordefinierte Temperatur.
  5. Die Kühleinheit gemäß Anspruch 4, dadurch gekennzeichnet, dass sie einen Wärmespeicher umfasst, der in dem Innenraum (6) angeordnet ist und eine Substanz mit hoher Wärmespeicherleistung enthält, um Wärme während des Betriebs des Kompressors abzugeben und Wärme zu absorbieren, wenn der Kompressor ausgeschaltet ist.
  6. Eine Kühleinheit (1) und eine entsprechende Steuerungs- und Verwaltungsanordnung, die einen Kühlaufbau (2) und mindestens einen Stromeingang (4) für ihre elektrische Stromversorgung umfasst, wobei die Kühleinheit mindestens einen Signaleingang (8) und mindestens einen Steuerschalter (9) umfasst, angeordnet entlang einer Stromleitung (10), die dem Stromeingang (4) entspricht und ihn steuert, wobei die Daten, die von dem entsprechenden Signaleingang (8) kommen, geeignet sind zum Steuern des Steuerschalters (9), zur anschließenden Erkennung der Anwesenheit/Abwesenheit der elektrischen Stromversorgung für den Kühlaufbau (2), dadurch gekennzeichnet, dass die Daten, die dem Signaleingang (8) zugeführt werden, von einem Netzschalter (11) stammen, der direkt von einer Person betätigt wird, die Zugang zu einem Raum hat, in dem sich die Kühleinheit (1) und andere elektrische Lasten (12) befinden, wobei der Netzschalter (11) im Wesentlichen stromabwärts von einem elektrischen Stromversorgungsnetz (3) angeordnet ist, wobei das Schließen des Netzschalters (11) von der Person ausgelöst wird, die sich in dem Raum befindet, um die elektrischen Lasten (12) zu betätigen, wodurch ein Steuersignal gesendet wird, das geeignet ist, den Steuerschalter (9) zu öffnen, um einen Ausfall der elektrischen Stromversorgung des Kühlaufbaus (2) zu verursachen, wobei das Öffnen des Netzschalters (11) infolge einer Auslösung des Netzschalters (11) durch die Person, wenn die Person den Raum verlässt, ein Steuersignal sendet, das geeignet ist, den Steuerschalter (9) zu schließen, um den Kühlaufbau (2) mit elektrischem Strom zu versorgen.
  7. Die Kühleinheit gemäß Anspruch 6, dadurch gekennzeichnet, dass der Kühlaufbau (2) mindestens einen Kompressor umfasst, der stromabwärts von der Netzzuleitung (10) und von dem Steuerschalter (9) angeordnet ist, wobei die Anwesenheit der elektrischen Stromversorgung die Aktivierung des Kompressors ermöglicht, um Wärme aus einem Innenraum (6) zu entfernen, der innerhalb der Kühleinheit (1) geformt ist und ausgebildet ist, um Produkte (7) aufzunehmen, die bei einer vordefinierten Temperatur gelagert werden sollen.
  8. Die Kühleinheit (1) gemäß Anspruch 7, dadurch gekennzeichnet, dass sie eine Sicherheitsvorrichtung (14) für die erzwungene Wiederherstellung der elektrischen Stromversorgung des Kühlaufbaus (2), wenn die in dem Innenraum (6) erreichte Temperatur um mindestens eine voreingestellte Stufe höher ist als die vordefinierte Temperatur, umfasst.
  9. Die Kühleinheit gemäß Anspruch 8, dadurch gekennzeichnet, dass die Sicherheitsvorrichtung (14) einen Thermostaten umfasst, der funktional mit dem Steuerschalter (9) verbunden ist, zum Zwecke seines automatischen Schließens, mit daraus folgender Zufuhr von elektrischem Strom an den mindestens einen Kompressor, wenn die in dem Innenraum (6) erreichte Temperatur um eine voreingestellte Stufe höher ist als die vordefinierte Temperatur.
  10. Die Kühleinheit gemäß Anspruch 9, dadurch gekennzeichnet, dass sie einen Wärmespeicher umfasst, der innerhalb des Innenraums (6) angeordnet ist und eine Substanz mit hoher Wärmespeicherleistung enthält, um Wärme während des Betriebs des Kompressors abzugeben und Wärme zu absorbieren, wenn der Kompressor ausgeschaltet ist.
  11. Eine Kühleinheit (1) und eine entsprechende Steuerungs- und Verwaltungsanordnung, die einen Kühlaufbau (2) und mindestens einen Stromeingang (4) für ihre elektrische Stromversorgung umfasst, wobei die Kühleinheit mindestens einen Signaleingang (8) und mindestens einen Steuerschalter (9) umfasst, angeordnet entlang einer Netzzuleitung (10), die dem Stromeingang (4) entspricht und ihn steuert, wobei die Daten, die von dem jeweiligen Signaleingang (8) kommen, geeignet sind, den Steuerschalter (9) zu steuern, um anschließend die Anwesenheit/Abwesenheit elektrischer Stromversorgung für den Kühlaufbau (2) zu ermitteln, dadurch gekennzeichnet, dass die Daten, die dem Signaleingang (8) zur Verfügung gestellt werden, von einem Netzschalter (11) bestimmt werden, welcher von einem Erfassungssensor zum Erfassen der Anwesenheit mindestens einer Person in der Nähe der Kühleinheit (1) gesteuert wird, wobei die Erfassung der Anwesenheit oder Abwesenheit der mindestens einen Person das Senden eines Steuersignals veranlasst, wobei das Steuersignal in der Anwesenheit oder Abwesenheit von Spannung über eine Signalleitung (13) besteht, die dem Signaleingang (8) entspricht, wobei die Anwesenheit von Spannung auf der Signalleitung (13) durch die Erfassung der Anwesenheit der mindestens einen Person verursacht wird und das Öffnen des Steuerschalters (9) veranlasst, um einen Ausfall der elektrischen Stromversorgung des Kühlaufbaus (2) zu verursachen, wobei der Spannungsausfall durch die Erfassung der Abwesenheit der mindestens einen Person verursacht wird und das Schließen des Steuerschalters (9) verursacht, um den Kühlaufbau (2) mit elektrischem Strom zu versorgen.
  12. Die Kühleinheit gemäß Anspruch 11, dadurch gekennzeichnet, dass der Kühlaufbau (2) mindestens einen Kompressor umfasst, der stromabwärts von der Netzzuleitung (10) und von dem Steuerschalter (9) angeordnet ist, wobei die Anwesenheit der elektrischen Stromversorgung die Aktivierung des Kompressors ermöglicht, um Wärme aus einem Innenraum (6) zu entfernen, der innerhalb der Kühleinheit (1) geformt und ausgebildet ist, um Produkte (7) aufzunehmen, die bei einer vordefinierten Temperatur gelagert werden sollen.
  13. Die Kühleinheit (1) gemäß Anspruch 12, dadurch gekennzeichnet, dass sie eine Sicherheitsvorrichtung (14) zur erzwungenen Wiederherstellung der elektrischen Stromversorgung des Kühlaufbaus (2), wenn die in dem Innenraum (6) erreichte Temperatur um mindestens eine voreingestellte Stufe höher ist als die vordefinierte Temperatur, umfasst.
  14. Die Kühleinheit gemäß Anspruch 13, dadurch gekennzeichnet, dass die Sicherheitsvorrichtung (14) einen Thermostaten umfasst, der funktional mit dem Steuerschalter (9) verbunden ist, zum Zwecke seines automatischen Schließens, mit daraus folgender Zufuhr von elektrischem Strom an den mindestens einen Kompressor, wenn die in dem Innenraum (6) erreichte Temperatur um eine voreingestellte Stufe höher ist als die vordefinierte Temperatur.
  15. Die Kühleinheit gemäß Anspruch 14, dadurch gekennzeichnet, dass sie einen Wärmespeicher umfasst, der innerhalb des Innenraums (6) angeordnet ist und eine Substanz mit hoher Wärmespeicherleistung enthält, um Wärme während des Betriebs des Kompressors abzugeben und Wärme zu absorbieren, wenn der Kompressor ausgeschaltet ist.
EP08425310.3A 2008-05-06 2008-05-06 Kühleinheit und entsprechende Steuerungs- und Verwaltungsanordnung Active EP2116801B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP08425310.3A EP2116801B1 (de) 2008-05-06 2008-05-06 Kühleinheit und entsprechende Steuerungs- und Verwaltungsanordnung
US12/453,224 US8297066B2 (en) 2008-05-06 2009-05-04 Refrigeration unit and respective control and management assembly
CN200910149781XA CN101598481B (zh) 2008-05-06 2009-05-06 制冷单元和相应的控制及管理组件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08425310.3A EP2116801B1 (de) 2008-05-06 2008-05-06 Kühleinheit und entsprechende Steuerungs- und Verwaltungsanordnung

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EP2116801A1 EP2116801A1 (de) 2009-11-11
EP2116801B1 true EP2116801B1 (de) 2018-11-14

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US (1) US8297066B2 (de)
EP (1) EP2116801B1 (de)
CN (1) CN101598481B (de)

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Publication number Priority date Publication date Assignee Title
CN103502745B (zh) * 2011-02-16 2016-09-14 惠灵顿驱动科技有限公司 制冷控制器
DE102011081953A1 (de) * 2011-09-01 2013-03-07 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät für geräuscharmen Betrieb
CH710088B1 (de) * 2014-09-08 2021-05-14 V Zug Ag Kühlgerät mit wählbaren Geräuschemissionen.
CN105423679B (zh) * 2015-10-27 2017-09-19 合肥美的电冰箱有限公司 冰箱及冰箱的噪音控制方法
CN105423694B (zh) * 2015-12-09 2018-12-25 四川长虹电器股份有限公司 一种降低冰箱噪音的方法和冰箱
EP4435363A1 (de) * 2023-03-23 2024-09-25 Indel B S.p.A. Steuersystem und verfahren zur steuerung eines kühlschranks

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JPH03225170A (ja) * 1990-01-29 1991-10-04 Sanyo Electric Co Ltd 冷蔵庫の運転制御装置
EP0881443A1 (de) 1997-05-27 1998-12-02 Urs Künzle Stromsparschaltung für ein netzbetriebenes Kühlgerät und Verfahren zur Steuerung derselben
JPH11173727A (ja) * 1997-12-12 1999-07-02 Hitachi Ltd 電子冷蔵庫
CN1598721A (zh) * 2004-07-26 2005-03-23 谷振宇 建筑采暖智能控制系统
CN2750263Y (zh) 2004-08-24 2006-01-04 广东科龙电器股份有限公司 一种小型冰箱
KR100773472B1 (ko) 2005-09-13 2007-11-05 최철훈 조도에 따라서 냉장고의 동작을 제어하는 방법 및 이를이용한 냉장고

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US8297066B2 (en) 2012-10-30
US20090277200A1 (en) 2009-11-12
CN101598481B (zh) 2013-11-20
CN101598481A (zh) 2009-12-09
EP2116801A1 (de) 2009-11-11

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